I don't know what is in rodent vitamins, so if I were you, I'd play it safe and go get the human infant vitamins this morning (get the version without iron). Also, give her as much olive oil as she'll accept and drink on her own...the oil will help to soften and lubricate any possible impaction in the crop. But, don't *force* anything, including oil, in a bird's throat, as they can aspirate and die. Continued massage of the crop helps, too, but make sure you're doing it gently and from the bottom upwards...also DO NOT tip her upside down as some posts (in other threads) have suggested in treating impacted crop. That is a sure-fire way to kill your chick.